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Re: Vector problem

Projections onto what planes, and how are those planes specified?


On Tue, 25 Jan 2011 03:19:45 -0600, Mark Perrin <m.perrin at> wrote:

> I'm having trouble formulating a problem in Mathematica.
> If I have two 2D vectors, u and v that are the known projections of a  
> third unknown 2D vector z, how do I determine z?
> My word problem (I think) is find the solution to: Projection[z,u] == u  
> && Projection [z,v] == v
> Any help in starting this problem would be much appreciated.

DrMajorBob at

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